/* ============================================================
   LEARNAI — PAGE LAYOUTS
   Home · Catalog · Product · Community
   ============================================================ */

/* ------------------------------------------------------------
   HOME — HERO
   ------------------------------------------------------------ */

.hero {
  position: relative;
  padding-block: clamp(3.5rem, 8vw, 6rem) clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(56% 46% at 82% 8%, rgba(16,185,129,.10), transparent 65%),
    radial-gradient(42% 40% at 8% 90%, rgba(217,119,6,.06), transparent 65%),
    linear-gradient(180deg, var(--bg), var(--bg-alt) 130%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(60% 60% at 60% 20%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(60% 60% at 60% 20%, #000 0%, transparent 75%);
  opacity: .5;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--s-12);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-6);
}

.hero h1 { font-size: var(--text-display-xl); margin-bottom: var(--s-5); }

.hero h1 .accent {
  color: var(--emerald-700);
  position: relative;
  white-space: nowrap;
}

.hero h1 .accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.04em;
  height: 0.16em;
  background: linear-gradient(90deg, rgba(4,120,87,.28), rgba(16,185,129,.1));
  z-index: -1;
  border-radius: var(--r-pill);
}

.hero__sub { font-size: var(--text-xl); color: var(--ink-soft); max-width: 40ch; margin-bottom: var(--s-8); }

.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: center; }

.hero__cta-note {
  font-size: var(--text-xs);
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: var(--s-1);
}

.hero__stat-row { display: flex; gap: var(--s-10); flex-wrap: wrap; margin-top: var(--s-10); }

.hero__stat b { font-family: var(--font-display); font-size: var(--text-display-sm); font-weight: 700; display: block; color: var(--ink); }

.hero__stat span { font-size: var(--text-xs); color: var(--muted); }

.hero__art { position: relative; }

.hero__book {
  position: relative;
  width: min(72%, 320px);
  margin-inline: auto;
  aspect-ratio: 3 / 4;
}

.hero__book .mockup--book .mockup__stage { width: 100%; aspect-ratio: 3 / 4; }

.hero__float {
  position: absolute;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  padding: var(--s-3) var(--s-4);
  font-size: var(--text-xs);
  display: flex;
  align-items: center;
  gap: var(--s-2);
  z-index: 6;
  animation: float-y 5s ease-in-out infinite;
}

.hero__float svg { color: var(--emerald-700); flex-shrink: 0; }

.hero__float b { color: var(--ink); font-weight: 700; font-variant-numeric: tabular-nums; }

.hero__float--top { top: 6%; right: 0; animation-delay: 1.2s; }

.hero__float--bottom { bottom: 12%; left: 0; animation-delay: 2.4s; }

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* Trust strip */

.trust-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.trust-strip__inner { display: flex; align-items: center; gap: var(--s-8); flex-wrap: wrap; padding-block: var(--s-5); }

.trust-strip__label { font-size: var(--text-2xs); font-weight: 700; letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--muted); margin-right: var(--s-2); }

.partner-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  color: var(--ink-soft);
  opacity: .72;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.partner-logo:hover { opacity: 1; }

.partner-logo .mono-mark {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--emerald-700);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xs);
  padding: 2px 6px;
}

/* ------------------------------------------------------------
   HOME — GOAL SELECTOR
   ------------------------------------------------------------ */

.goal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-3); }

.goal-card {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  padding: var(--s-5) var(--s-4);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  text-align: left;
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}

.goal-card:hover {
  border-color: var(--emerald-700);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.goal-card__icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  background: var(--emerald-50);
  color: var(--emerald-700);
  border: 1px solid #A7F3D0;
  margin-bottom: var(--s-2);
}

.goal-card b { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600; color: var(--ink); }

.goal-card span { font-size: var(--text-2xs); color: var(--muted); line-height: 1.45; }

/* ------------------------------------------------------------
   HOME — GUIDE GRID
   ------------------------------------------------------------ */

.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-6); }

.section-head__count {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--text-xs);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------
   HOME — TESTIMONIALS
   ------------------------------------------------------------ */

.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-6); }

/* ------------------------------------------------------------
   HOME — CONVERSION BAND
   ------------------------------------------------------------ */

.conversion-band {
  position: relative;
  overflow: hidden;
  background: var(--dark);
  border-radius: var(--r-lg);
  color: var(--on-dark);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
  border: 1px solid var(--line-dark);
}

.conversion-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(50% 80% at 50% -10%, rgba(16,185,129,.22), transparent 65%),
    radial-gradient(30% 50% at 90% 110%, rgba(217,119,6,.1), transparent 60%);
}

.conversion-band > * { position: relative; }

.conversion-band h2 { font-size: var(--text-display-lg); margin-bottom: var(--s-4); }

.conversion-band p { color: var(--on-dark-muted); max-width: 52ch; margin-inline: auto; margin-bottom: var(--s-8); font-size: var(--text-lg); }

.conversion-band .hero__cta { justify-content: center; }

/* ------------------------------------------------------------
   CATALOG — LAYOUT
   ------------------------------------------------------------ */

.catalog-top { display: flex; gap: var(--s-6); align-items: stretch; }

.catalog-sidebar { width: 268px; flex-shrink: 0; }

.catalog-main { flex: 1; min-width: 0; }

.catalog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  flex-wrap: wrap;
  margin-bottom: var(--s-6);
}

.catalog-toolbar__left { display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; }

.catalog-count { font-size: var(--text-sm); color: var(--muted); font-variant-numeric: tabular-nums; }

.catalog-count b { color: var(--ink); font-weight: 700; }

.sort-select {
  appearance: none;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  font-size: var(--text-sm);
  padding: 0.55em 2.4em 0.55em 0.9em;
  color: var(--ink-soft);
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7em center;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--emerald-800);
  background: var(--emerald-50);
  border: 1px solid #A7F3D0;
  border-radius: var(--r-pill);
  padding: 0.35em 0.7em;
}

.chip button { display: inline-flex; color: var(--emerald-800); padding: 2px; border-radius: var(--r-pill); }
.chip button:hover { color: var(--emerald-900); }

.catalog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }

.catalog-empty {
  display: none;
  text-align: center;
  padding: var(--s-16) var(--s-8);
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg);
  background: var(--bg-alt);
}

.catalog-empty.is-visible { display: block; }

.catalog-empty svg { color: var(--muted); margin-inline: auto; margin-bottom: var(--s-4); }

.catalog-empty h3 { margin-bottom: var(--s-2); }

.catalog-empty p { color: var(--muted); font-size: var(--text-sm); margin-bottom: var(--s-5); }

/* Filter panel */

.filter-group { padding-block: var(--s-5); border-bottom: 1px solid var(--line); }

.filter-group:first-child { padding-top: 0; }

.filter-group__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--ink);
  padding: 0;
}

.filter-group__count {
  font-size: var(--text-2xs);
  color: var(--muted);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: 1px 8px;
  font-variant-numeric: tabular-nums;
}

.filter-options { display: flex; flex-direction: column; gap: var(--s-2); margin-top: var(--s-4); }

.filter-check {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--text-sm);
  color: var(--ink-soft);
  cursor: pointer;
}

.filter-check input {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xs);
  background: var(--bg);
  flex-shrink: 0;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.filter-check input::after {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 1px;
  background: transparent;
  transition: background var(--dur-fast) var(--ease-out);
}

.filter-check input:checked {
  background: var(--emerald-900);
  border-color: var(--emerald-900);
}

.filter-check input:checked::after { background: #fff; }

.filter-check input[type="radio"] { border-radius: 50%; }

.filter-check input[type="radio"]::after { border-radius: 50%; }

.filter-check input:checked[type="radio"]::after { background: #fff; }

.filter-check:hover { color: var(--ink); }

.filter-radio {
  display: flex;
  gap: var(--s-2);
  flex-wrap: wrap;
}

.filter-radio .radio-label {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--ink-soft);
  padding: 0.45em 0.8em;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}

.filter-radio input { display: none; }

.filter-radio input:checked + .radio-label {
  background: var(--emerald-900);
  border-color: var(--emerald-900);
  color: var(--on-dark);
}

.filter-price-tiers { display: flex; flex-direction: column; gap: var(--s-3); margin-top: var(--s-4); }

.filter-price-tiers .price-tier {
  display: block;
  width: 100%;
  font-size: var(--text-sm);
  color: var(--ink-soft);
  padding: 0.6em 0.9em;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  text-align: left;
  transition: all var(--dur-fast) var(--ease-out);
}

.filter-price-tiers .price-tier:hover { border-color: var(--emerald-700); color: var(--ink); }

.filter-price-tiers .price-tier.is-active {
  background: var(--emerald-900);
  border-color: var(--emerald-900);
  color: var(--on-dark);
}

/* ------------------------------------------------------------
   PRODUCT — TWO-COLUMN DEEP DIVE
   ------------------------------------------------------------ */

.product-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(2.5rem, 6vw, 5rem); align-items: start; }

.breadcrumb { display: flex; align-items: center; gap: var(--s-2); font-size: var(--text-xs); color: var(--muted); flex-wrap: wrap; margin-bottom: var(--s-6); }

.breadcrumb a:hover { color: var(--emerald-700); }

.breadcrumb svg { width: 14px; height: 14px; }

.product-head { margin-bottom: var(--s-6); }

.product-head h1 { font-size: var(--text-display-md); max-width: 20ch; margin-block: var(--s-3); }

.product-head__meta { display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; }

/* Left column */

.product-media {
  position: sticky;
  top: calc(64px + var(--s-6));
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

.product-stage {
  position: relative;
  aspect-ratio: 4 / 4.6;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(90% 90% at 30% 0%, #FFFFFF, rgba(255,255,255,0) 60%),
    var(--bg-alt);
  display: grid;
  place-items: center;
  overflow: hidden;
  transition: box-shadow var(--dur-med) var(--ease-out);
}

.product-stage:hover { box-shadow: var(--shadow-md); }

.product-stage .mockup--book {
  width: 46%;
  max-width: 260px;
}

.product-stage .mockup--tablet,
.product-stage .mockup--folder {
  width: 56%;
  max-width: 300px;
}

.product-stage .mockup--book .mockup__stage,
.product-stage .mockup--folder .mockup__stage {
  width: 100%;
  aspect-ratio: 3 / 4;
}

.product-stage .mockup--tablet .mockup__stage {
  width: 100%;
}

.product-stage__hint {
  position: absolute;
  bottom: var(--s-4);
  right: var(--s-4);
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--text-2xs);
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: 0.35em 0.8em;
}

.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-3); }

.gallery__thumb {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--bg-alt);
  padding: var(--s-3);
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.gallery__thumb:hover { border-color: var(--line-strong); transform: translateY(-2px); }

.gallery__thumb.is-active { border-color: var(--emerald-700); box-shadow: 0 0 0 2px rgba(4,120,87,.14); }

.gallery__line { height: 7px; border-radius: 2px; background: var(--bg-inset); }

.gallery__line--dark { background: var(--emerald-900); }
.gallery__line--short { width: 58%; }
.gallery__line--gold { background: var(--gold-500); }

/* CTA block */

.cta-block {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg);
  box-shadow: var(--shadow-sm);
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

.cta-block__price { display: flex; align-items: baseline; gap: var(--s-3); flex-wrap: wrap; }

.cta-block__price .now { font-family: var(--font-display); font-size: var(--text-display-md); font-weight: 700; }

.cta-block__price .was { color: var(--faint); text-decoration: line-through; }

.cta-block__price .once { font-size: var(--text-2xs); color: var(--muted); }

.cta-block__list { display: flex; flex-direction: column; gap: var(--s-2); }

.cta-block__list li {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--text-sm);
  color: var(--ink-soft);
}

.cta-block__list svg { color: var(--emerald-700); flex-shrink: 0; }

.cta-block__pay {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--text-xs);
  color: var(--muted);
}

.cta-block__pay svg { color: #16A34A; }

/* Right column */

.product-tabs { display: flex; gap: var(--s-1); border-bottom: 1px solid var(--line); margin-bottom: var(--s-6); overflow-x: auto; }

.product-tabs button {
  position: relative;
  padding: var(--s-3) var(--s-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}

.product-tabs button:hover { color: var(--ink); }

.product-tabs button[aria-selected="true"] { color: var(--emerald-900); }

.product-tabs button[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: var(--s-3);
  right: var(--s-3);
  bottom: -1px;
  height: 2px;
  background: var(--emerald-900);
}

.tab-panel { display: none; }

.tab-panel.is-active { display: block; animation: fade-in var(--dur-med) var(--ease-out); }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* Curriculum / chapter list */

.chapter { display: grid; grid-template-columns: auto 1fr auto; gap: var(--s-4); padding-block: var(--s-4); border-bottom: 1px solid var(--line); align-items: start; }

.chapter:last-child { border-bottom: 0; }

.chapter__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xs);
  color: var(--emerald-700);
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--emerald-50);
  border: 1px solid #A7F3D0;
  border-radius: var(--r-sm);
  font-variant-numeric: tabular-nums;
}

.chapter__title { font-weight: 600; font-size: var(--text-sm); color: var(--ink); }

.chapter__obj { font-size: var(--text-sm); color: var(--muted); margin-top: var(--s-1); }

.chapter__len {
  font-size: var(--text-2xs);
  color: var(--muted);
  white-space: nowrap;
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

/* Sample prompts (blurred) */

.prompt {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--bg);
  padding: var(--s-4) var(--s-5);
  filter: blur(5px);
  user-select: none;
  pointer-events: none;
}

.prompt + .prompt { margin-top: var(--s-3); }

.prompt__label { font-size: var(--text-2xs); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--s-1); }

.prompt p { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--ink-soft); line-height: 1.6; }

.prompts-locked { position: relative; padding-block: var(--s-2); }

.prompts-locked .prompt-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s-3);
  text-align: center;
  padding: var(--s-6);
  background: linear-gradient(180deg, rgba(251,251,253,.1), rgba(251,251,253,.85));
}

/* Author bio */

.author-card { display: flex; gap: var(--s-5); padding-block: var(--s-5); border-bottom: 1px solid var(--line); }

.author-card:last-child { border-bottom: 0; }

.author-card__avatar {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  border-radius: var(--r-pill);
  display: grid;
  place-items: center;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  box-shadow: inset 0 -1px 0 rgba(255,255,255,.2), var(--shadow-sm);
}

.author-card__name { font-weight: 600; font-size: var(--text-md); }

.author-card__role { font-size: var(--text-xs); color: var(--muted); margin-top: 2px; }

.author-card__bio { font-size: var(--text-sm); color: var(--muted); margin-top: var(--s-2); }

.author-card__tags { display: flex; flex-wrap: wrap; gap: var(--s-1); margin-top: var(--s-3); }

/* Trust panel */

.trust-panel {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg-alt);
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  margin-top: var(--s-8);
}

.trust-panel__row { display: flex; gap: var(--s-3); align-items: flex-start; }

.trust-panel__row svg { color: var(--emerald-700); flex-shrink: 0; margin-top: 2px; }

.trust-panel__row b { font-size: var(--text-sm); display: block; color: var(--ink); }

.trust-panel__row p { font-size: var(--text-xs); color: var(--muted); }

/* ------------------------------------------------------------
   COMMUNITY — LAYOUT
   ------------------------------------------------------------ */

.aspiration {
  position: relative;
  overflow: hidden;
  background: var(--dark);
  border-radius: var(--r-lg);
  color: var(--on-dark);
  padding: clamp(3rem, 7vw, 5rem);
  border: 1px solid var(--line-dark);
}

.aspiration::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 90% at 15% 10%, rgba(16,185,129,.18), transparent 60%);
}

.aspiration__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--s-12); align-items: center; }

.aspiration h2 { font-size: var(--text-display-lg); margin-bottom: var(--s-4); }

.aspiration p { color: var(--on-dark-muted); font-size: var(--text-lg); max-width: 40ch; margin-bottom: var(--s-8); }

.chat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-4); transform: rotate(-1.5deg); }

.chat-grid .chat-card:nth-child(2) { transform: translateY(var(--s-6)); }

.meetup-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }

.spot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }

.faq-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: var(--s-12); align-items: start; }

.faq-intro h2 { margin-bottom: var(--s-4); }

.faq-intro p { color: var(--muted); font-size: var(--text-md); max-width: 38ch; margin-bottom: var(--s-6); }

.request-form-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--s-8);
}

/* ------------------------------------------------------------
   LOADING + NOT-FOUND STATES
   ------------------------------------------------------------ */

.catalog-loading {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s-3);
  padding: var(--s-12) 0;
  color: var(--muted);
  font-size: var(--text-sm);
  text-align: center;
}

.spinner {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 3px solid var(--line-strong);
  border-top-color: var(--emerald-700);
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.course-state {
  max-width: 46ch;
  padding: var(--s-8) 0 var(--s-12);
}

/* ------------------------------------------------------------
   RESPONSIVE
   ------------------------------------------------------------ */

@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: var(--s-8); }
  .hero__art { order: -1; max-width: 380px; margin-inline: auto; }
  .goal-grid { grid-template-columns: repeat(3, 1fr); }
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .catalog-top { flex-direction: column; }
  .catalog-sidebar { width: 100%; }
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
  .product-layout { grid-template-columns: 1fr; }
  .product-media { position: static; }
  .aspiration__grid { grid-template-columns: 1fr; gap: var(--s-8); }
  .spot-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; gap: var(--s-8); }
  .meetup-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .goal-grid { grid-template-columns: repeat(2, 1fr); }
  .guide-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: 1fr; }
  .spot-grid { grid-template-columns: 1fr; }
  .meetup-grid { grid-template-columns: 1fr; }
  .chat-grid { grid-template-columns: 1fr; transform: none; }
  .chat-grid .chat-card:nth-child(2) { transform: none; }
  .section-head--split { flex-direction: column; align-items: flex-start; }
  .hero h1 .accent { white-space: normal; }
  .hero__cta { width: 100%; }
  .hero__cta .btn { width: 100%; }
  .hero__stat-row { gap: var(--s-5); margin-top: var(--s-8); }
  .trust-strip__inner { gap: var(--s-4); }
  .chapter { gap: var(--s-3); }
  .cta-block, .trust-panel, .request-form-card { padding: var(--s-5); }
  .author-card { gap: var(--s-3); }
  .author-card__avatar { width: 56px; height: 56px; }
}

@media (max-width: 480px) {
  .hero { padding-top: var(--s-10); }
  .hero__art { max-width: 300px; }
  .hero__float { display: none; }
  .hero__stat { flex: 1 1 calc(50% - var(--s-5)); }
  .goal-grid { grid-template-columns: 1fr; }
  .catalog-toolbar { align-items: stretch; }
  .catalog-toolbar__left { align-items: stretch; }
  .sort-select { width: 100%; }
  .product-stage__hint { display: none; }
  .chapter { grid-template-columns: auto minmax(0, 1fr); }
  .chapter__len { grid-column: 2; margin-top: calc(var(--s-2) * -1); }
  .author-card { align-items: flex-start; }
  .ticker { left: var(--s-3); right: var(--s-3); bottom: var(--s-3); max-width: none; }
}